Excellent point! If I remember correctly, the current 62 grain bullet will fracture at the cannelure if it impacts with enough velocity, which at least gives you two wound tracks from each hit. The M-16 will therefore have a better chance of getting the job done (in terms of terminal ballistics) in any given situation. Maybe we should at least look at putting M-4 buttstocks on flat top M-16s and split the difference (the Canadians have or had a model like that)...
Israel is transitioning over to their new Tavor rifle. It’s a bullpup configuration so it’s short enough for urban combat, but still has the longer barrel for accuracy. The interesting thing about it is the sight, which is built into the barrel. The sight and barrel are one unit. Haven’t seen one up close.
The Tavor:
http://www.youtube.com/watch?v=vj5Z5e8CUUM